Agenda 11/14/2023 Item #16B 2 (An updated intersection design for the Pine Ridge Road Congestion Corridor Study)11/14/2023
EXECUTIVE SUMMARY
Recommendation to approve the recently updated intersection design for the Pine Ridge Road Congestion
Corridor Study and direct staff to pursue the Jughandle Intersection alternative at Pine Ridge Road and
Livingston Road, a conventional intersection at Pine Ridge Road and Whippoorwill Lane, and the Diverging
Diamond Interchange at the Pine Ridge Road/I-75 interchange. (Project No. 60201)
OBJECTIVE: To increase capacity on Pine Ridge Road between Livingston Road and Napa Boulevard by
completing intersection improvements.
CONSIDERATIONS: The Collier County Pine Ridge Road Corridor Congestion Study (2018) conducted by
Stantec Inc. evaluated existing and future traffic conditions within the Pine Ridge Road corridor and evaluated
potential intersection improvements that would relieve congestion and improve the Level of Service (“LOS”). The
Study evaluated three alternative innovative intersection designs for the Pine Ridge Road and Livingston Road
intersection. The designs included a Continuous Flow Intersection (“CFI”), Jughandle (“JH”), and Single Point
Urban Interchange (“SPUI”) (also referred to as an overpass). The Study concluded that a partial -CFI was the
preferred alternative for Pine Ridge Road & Livingston Road. The study recommended continued coordination with
FDOT regarding a Restricted Crossing U-Turn intersection at Whippoorwill Lane and Pine Ridge Road along with
a Diverging Diamond Interchange (“DDI”) at the Pine Ridge Road/I-75 interchange.
On March 27, 2018, the Board approved a recommendation to accept the Pine Ridge Road Congestion Corridor
Study and directed staff to pursue the intersection designs recommended in the study.
On July 12, 2022 (Agenda Item 11.K), the Board approved Professional Services Agreement No. 21-7831, Pine
Ridge Road Corridor Improvements, with Jacobs Engineering Group, Inc. (“Jacobs”) to incorporate the Study’s
recommended corridor design improvements.
During initial meetings with Jacobs, potential issues were identified with the CFI due to ing ress/egress constraints
along Livingston Road at the Meridian Plaza entrance (northeastern quadrant of the Pine Ridge Road and
Livingston Road intersection).
On August 8, 2023, the County directed Jacobs to model the intersection with updated traffic data and year 2045
traffic volume projections. Based on the refined data, Jacobs was directed to re-evaluate the three alternative
intersection designs previously studied during the Corridor Congestion Study and to prepare a Technical
Memorandum (see Appendix).
The updated study concluded that from an operational standpoint, any of the three alternatives will improve the
functionality of the Pine Ridge Road and Livingston Road intersection. The SPUI and Jughandle options are
projected to perform better in the year 2045 AM peak hour model while the CFI and the SPUI are projected to
perform better in the year 2045 PM peak hour model. However, the differences in projected traffic congestion
between the models was not significant. Since, the traffic congestion models were similar, the final preferred
alternative was based on additional factors such as access management, construction costs, and projected Right of
Way (“ROW”) acquisition costs.
The SPUI option was eliminated due to the significant estimated construction costs ($59.7M) and anticipated
impacts on the adjacent commercial area and ROW costs.
The CFI alternative was eliminated due to safety concerns over the ingress/egress constraints at the Meridian Plaza
entrance along Livingston Road. The construction cost estimate for this option was $26.3M (not including ROW
cost estimate).
The Jughandle alternative is the recommended option for this intersection. The construction cost is estimated at
$23.2M. In addition to being the least expensive option (ROW costs are also anticipated to be less than CFI option),
16.B.2
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11/14/2023
this concept provides several other benefits:
• No anticipated business damages;
• Accommodates pedestrian/bicycle movements with minimal interruption to signal cycle;
• Eliminates conflict access points at Meridian Plaza;
• Shorter construction schedule (3-9-month reduction in schedule);
• Simpler Maintenance of Traffic operations compared to CFI;
• Minimized utility impacts.
Continued coordination with FDOT resulted in eliminating the Restricted Crossing U-Turn (RCUT) intersection at
Whippoorwill Lane and Pine Ridge Road and instead concluded that a conventional intersection design is the
preferred solution.
This item is consistent with the Collier County strategic plan objective to design and maintain an effective
transportation system to reduce traffic congestion and improve the mobility of our residents and visitors.
FISCAL IMPACT: Funds for this project (60201) are Surtax, Road Impact Fees and Gas Taxes. We anticipate a
change order to the design contract will be needed to modify the type of intersection; however, we do not anticipate
additional funds being necessary for that change order.
GROWTH MANAGEMENT IMPACT: This item is consistent with the Collier County strategic plan objective
to design and maintain an effective transportation system to reduce traffic congestion and improve the mobility of
our residents and visitors.
LEGAL CONSIDERATIONS: This item is approved as to form and legality and requires majority vote for Board
approval. -SRT
RECOMMENDATION: To approve the recently updated intersection design for the Pine Ridge Road Congestion
Corridor Study and direct staff to pursue the Jughandle Intersection alternative at Pine Ridge Road and Livingston
Road, a conventional intersection at Pine Ridge Road and Whippoorwill Lane, and the Diverging Diamond
Interchange at the Pine Ridge Road/I-75 interchange.
Prepared by Dennis F. McCoy, P.E., Project Manager III, Transportation Engineering Division, Transportation
Management Services Department
ATTACHMENT(S)
1. [Linked] Pine Ridge Road Corridor Improvements Technical Memorandum_OCT 23 2023 (1) (PDF)
2. PP Presentation BCC Meeting11-14-23 Pine Ridge (PPTX)
16.B.2
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11/14/2023
COLLIER COUNTY
Board of County Commissioners
Item Number: 16.B.2
Doc ID: 27024
Item Summary: Recommendation to approve the recently updated intersection design for the Pine Ridge Road
Congestion Corridor Study and direct staff to pursue the Jughandle Intersection alternative at Pine Ridge Road and
Livingston Road, a conventional intersection at Pine Ridge Road and Whippoorwill Lane, and the Diverging
Diamond Interchange at the Pine Ridge Road/I-75 interchange. (Project No. 60201)
Meeting Date: 11/14/2023
Prepared by:
Title: Project Manager – Transportation Engineering
Name: Dennis McCoy
10/19/2023 11:20 AM
Submitted by:
Title: Division Director - Transportation Eng – Transportation Engineering
Name: Jay Ahmad
10/19/2023 11:20 AM
Approved By:
Review:
Transportation Management Services Department Danielle Bates Transportation Management Services
Department Completed 10/24/2023 12:51 PM
Transportation Engineering Marlene Messam Additional Reviewer Completed 10/24/2023 1:18 PM
Transportation Engineering Jay Ahmad Additional Reviewer Completed 10/24/2023 1:37 PM
Growth Management Community Development Department Lisa Taylor Additional Reviewer Completed
10/24/2023 2:16 PM
Capital Project Planning, Impact Fees, and Program Management Lorraine Lantz Additional Reviewer Completed
10/24/2023 2:29 PM
Transportation Management Operations Support Tara Castillo Additional Reviewer Completed
10/24/2023 3:03 PM
Road Maintenance Ellen Sheffey Additional Reviewer Completed 10/24/2023 4:39 PM
Transportation Management Services Department Trinity Scott Transportation Completed
10/30/2023 1:14 PM
County Attorney's Office Scott Teach Level 2 Attorney Review Completed 10/31/2023 10:12 AM
County Attorney's Office Jeffrey A. Klatzkow Level 3 County Attorney's Office Review Completed 10/31/2023 10:43 AM
Office of Management and Budget Debra Windsor Level 3 OMB Gatekeeper Review Completed 10/31/2023 10:54 AM
Community & Human Services Maggie Lopez Additional Reviewer Completed 11/06/2023 9:16 AM
County Manager's Office Amy Patterson Level 4 County Manager Review Completed 11/08/2023 2:44 PM
Board of County Commissioners Geoffrey Willig Meeting Pending 11/14/2023 9:00 AM
16.B.2
Packet Pg. 560
Jay Ahmad, P.E.
Tr ansportation Engineering, Director
Pine Ridge Road Corridor Improvements
Re commendation to approve the recently updated intersection
design for the Pine Ridge Road Congestion Corridor Study and
direct staff to pursue the Jughandle Intersection alternative at
Pine Ridge Road and Livingston Road, a conventional intersection
at Pine Ridge Road and Whippoorwill Lane, and the Diverging
Diamond Interchange at the Pine Ridge Road/I-75 interchange.
(Project No. 60201)
Transportation Management Services Department
Transportation Engineering Division
11/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS 1
16.B.2.b
Packet Pg. 561 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Pine Ridge Road Corridor Congestion Study (2018)
•Evaluated existing and future (2040) traffic conditions within the Pine
Ridge Road Corridor (from Livingston Road to Napa Boulevard)
•Evaluated three alternatives for the Pine Ridge Road and Livingston
Road intersection:
Continuous Flow Intersection (CFI)
Jughandle
Single Point Urban Interchange (overpass)
•Pine Ridge Road / Whippoorwill Lane -Restricted Crossing U-Tu rn
(R-CUT)
•Pine Ridge Road / I-75 Interchange -Diverging Diamond Interchange
(DDI)
Transportation Management Services Department
Transportation Engineering Division
211/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
On March 27, 2018, the Board accepted the recommendations of the
study, including the CFI alternative at the Pine Ridge / Livingston Road
Intersection
Project History
16.B.2.b
Packet Pg. 562 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Re commended Intersection Designs from Pine Ridge
Road Corridor Congestion Study (2018)Transportation Management Services Department
Transportation Engineering Division
311/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
Continuous Flow
Intersection (CFI)
R-CUT
Diverging Diamond Intersection (DDI)
16.B.2.b
Packet Pg. 563 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Pine Ridge Road Corridor Design Improvements Transportation Management Services Department
Transportation Engineering Division
411/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
•Jacobs prepared a project area traffic model with 2045 projected traffic data
•Jacobs performed a detailed review of the corridor operations based on the 2045 traffic model
•During workshop meetings, Jacobs, County and FDOT staff identified potential operational
problems with two of the proposed intersections:
•Pine Ridge Road / Livingston Road CFI -due to ingress/egress constraints along Livingston Road
at the Meridian Plaza entrance
•Pine Ridge Road / Whippoorwill Lane R-CUT -due to operational conflicts with the I-75 DDI
•The Jacobs review also considered operational efficiency, construction costs and schedule,
Right-of-Way (ROW) impacts, potential business damages, access management, drainage and
utility impacts
Jacobs started design services on 8/29/2022
16.B.2.b
Packet Pg. 564 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Pine Ridge Road & Livingston Road
Transportation Management Services Department
Transportation Engineering Division
511/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
The Study recommended a Continuous Flow Intersection (CFI) –as shown below
Issues associated with CFI include:
•Access management into/out
of Meridian Plaza
•ROW Impacts
•Pedestrian/Bicycle movement
(interrupts signal cycle)
•Potential business damages to
Germain and Meridian Plaza
•Constructability
•Lengthy construction schedule
•Complex Maintenance of
Tr affic
•Extensive utility and drainage
impacts
•Cost $26-$30 Million (excludes
Design, CEI, Permitting,
Mitigation and significant ROW
costs)
16.B.2.b
Packet Pg. 565 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Pine Ridge Road & Livingston Road Transportation Management Services Department
Transportation Engineering Division
611/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
Current recommendation: Jughandle
16.B.2.b
Packet Pg. 566 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Pine Ridge Road & Livingston Road Transportation Management Services Department
Transportation Engineering Division
711/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
Jughandle benefits include:
•Improved access management to Meridian
•Minimal ROW impacts
•Efficient bicycle and pedestrian
accommodations
•No anticipated business damages
•Shortest construction schedule
•Least disruption to motorists (traffic
operations) during construction
•Minimal impacts to existing drainage and
utilities
•Lowest construction cost
16.B.2.b
Packet Pg. 567 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Pine Ridge Road & Whippoorwill Lane /
Kramer Drive Transportation Management Services Department
Transportation Engineering Division
811/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
The Study recommended a Restricted Crossing U-Tu rn (R-CUT)
Concerns with R-CUT include:
•Proximity to I-75 Interchange DDI creates
operational impacts to interchange
16.B.2.b
Packet Pg. 568 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Pine Ridge Road & Whippoorwill Lane /
Kramer Drive
Transportation Management Services Department
Transportation Engineering Division
911/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
Current recommendation: conventional signalized intersection at Whippoorwill Lane / Kramer Drive
Improvements include Re-alignment of
the median at Kramer Drive to provide:
•1 southbound right turn/thru lane
•2 southbound left turn lanes
•4’ raised traffic barrier
•1 northbound receiving lane
•No changes to existing Whippoorwill
Lane configuration are recommended
due to ROW restrictions
16.B.2.b
Packet Pg. 569 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Pine Ridge Road & I-75 Interc hange
Transportation Management Services Department
Transportation Engineering Division
1011/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
Recommendation: no changes from the Study ’s recommendation (DDI)
16.B.2.b
Packet Pg. 570 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine
Transportation Management Services Department
Transportation Engineering DivisionRecommendation to Approve
1111/14/2023 PINE RIDGE ROAD CORRIDOR IMPROVEMENTS
Recommendation to approve the recently updated intersection design for the Pine Ridge Road
Congestion Corridor Study and direct staff to pursue the Jughandle Intersection alternative at Pine
Ridge Road and Livingston Road, a conventional intersection at Pine Ridge Road and Whippoorwill Lane,
and the Diverging Diamond Interchange at the Pine Ridge Road/I-75 interchange. (Project No. 60201)
16.B.2.b
Packet Pg. 571 Attachment: PP Presentation BCC Meeting11-14-23 Pine Ridge (27024 : Design Change approval for Pine